Free SEO Tools
Practical checks you can run right now — no account, no credit card. Each one gives you a plain-English answer and tells you exactly what to fix.
SERP Snippet Preview
See exactly how your page title and description appear in Google — with pixel-width warnings before they get cut off.
Open tool →Mobile-Friendly Test
Check whether a page is mobile ready — viewport, zoom, text size and layout problems that hurt mobile rankings.
Open tool →Duplicate Content Checker
Compare two pages and get a real similarity score — catch near-duplicate and templated pages Google refuses to index.
Open tool →Redirect Checker
Follow the full redirect chain hop by hop — spot 302s that should be 301s, long chains and redirect loops.
Open tool →Schema Markup Checker
See which structured data a page publishes, whether the JSON-LD is valid, and which recommended fields are missing.
Open tool →Meta Tag Generator
Generate clean title, description, canonical, Open Graph and Twitter Card tags — ready to paste into your page head.
Open tool →Heading Structure Checker
Map a page’s H1–H6 outline and catch missing H1s, duplicate H1s, skipped levels and empty headings.
Open tool →Keyword Density Checker
See which words and phrases a page actually emphasises — and whether you have crossed into keyword stuffing.
Open tool →Hreflang Checker
Validate hreflang tags for multi-language sites — self-reference, invalid codes and a missing x-default.
Open tool →WordPress SEO Checker
Audit any WordPress site’s on-page SEO in seconds — titles, meta, headings, schema, sitemap, robots and the SEO plugin it uses.
Open tool →WordPress Security Checker
A passive, non-invasive security posture check for your WordPress site — version exposure, security headers, user enumeration, XML-RPC and info leaks.
Open tool →Why these are free
They answer one question well. If you want ongoing monitoring across a whole site, that is what the full CheckSEO audit does.
Nothing stored
These tools read public pages and show you the result. We do not need your email to run them.
Built on the real engine
The same crawler and content analysis that powers our paid audits — not a stripped-down demo.
Want the full picture?
Run a complete SEO audit of your website — score, prioritised issues and a fix checklist.
Run a Free Full Audit →